The Eastern Greater Poland dialect (Polish: gwary wschodniowielkopolskie) belongs to the Greater Poland dialect group and is located in the part of Poland. It borders the Kujawy dialect to the north, the Central Greater Polish dialect to the east, and the Lesser Poland Łęczyca dialect to the northwest and the Sieradz dialect to the southwest.

Typical of Greater Polish dialects, voicing of word-final consonants before vowels and liquids is present here. Also typical of Greater Polish dialects, mazuration is not present. A few words may appear to have mazuration, in reality are the result of morphology.

Diphthongization is rare here, in contrast to many other subdialects of Greater Polish. Tautosyllabic -aj often shifts to -ej.

Slanted é often raises to i or y. Slanted ó is retained ó/u. Slanted á raises to o. e, o, and a may also raise to similar positions before sonorants, particularly nasals.

Nasal ę and ą decompose and raise word-medially to iN, yN and oN, -óN. Word final -ę denasalizes, and word-final -ą is typically realized as -om, -óm.

o tends to labialize to ô, especially word-initially.

A common shift of trz, drz>czsz, dżż>cz, dż, strz, zdrz>szczsz, żdżż>szcz, żdż is present. Other simplifications include wszysko (wszysko), and some instances of elision: pado (powiada). -ższ- in comparatives is usually reduced to -sz-. The cluster -chrz- is usually realized as -krz-, and -pch- as -pk-. kt shifts to cht. Intervocalic ł is often lost, especially in the past tense: osiwiaa (osiwiała). -mi, -li are hardened regionally (i.e. in Golina-Kolonia) shifted to -my, ly due to Masovian influence: nogamy, polywka (nogami, polywka), but this is falling out of use.

Some verbs do not show contraction: stojali (stali).